Home / 12,148.65-18,222.46-3,834.63

Finding the Fourth Proportional to 12,148.65, 18,222.46 and 3,834.63

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Solution

The fourth proportional to 12,148.65, 18,222.46 and 3,834.63 is: 5,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.65 : 18,222.46 = 3,834.63 : x
  2. Step 2: Convert to fraction form
    12,148.65/18,222.46 = 3,834.63/x
  3. Step 3: Cross multiply
    12,148.65x = 18,222.46 × 3,834.63
  4. Step 4: Simplify right side
    12,148.65x = 69,876,391.79
  5. Step 5: Solve for x
    x = 69,876,391.79/12,148.65
  6. Step 6: Final answer
    x = 5,751.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.